Answer:
A.) x = -15
Step-by-step explanation:
-19+4 = x
x = -15
50 - 6 = 44
44/4 = 11
The price per yard is $11.
I hope that helped you! c:
It’s C because
3*2 - 2* -1 =8
6+2=8
8=8
Step-by-step explanation:
Distance = rate × time
If b is the speed of the boat in still water, and c is the speed of the current, then:
60 = (b + c) × 4
35 = (b − c) × 3.5
Simplifying:
15 = b + c
10 = b − c
Add the equations together:
25 = 2b
b = 12.5
Plug into either equation to find c:
c = 2.5
The speed of the boat is 12.5 km/h, and the speed of the current is 2.5 km/h.
